Single facer

Abstract

A single facer including a main frame installed on a base for supporting a paste application roll, a pressure roll and so on, a movable frame fixed on or removably supported on the main frame for rotatably supporting upper and lower corrugated rolls in meshing engagement with each other, and a transfer mechanism for moving the movable frame in a transverse direction substantially in the axial direction of the respective upper and lower rolls to transfer them out of or into the main frame.

What is claimed is: 
     
       1. A single facer comprising: a main frame;   a paste application roll rotatably supported on said main frame, said paste application roll having a roll axis extending in a transverse direction;   a pressure roll rotatably supported on said main frame, said pressure roll having a roll axis which is parallel to said transverse direction;   a movable frame movable in said transverse direction between a fixed position on said main frame for making a single-faced corrugated sheet and a position off of said main frame;   a lower corrugated roll rotatably supported on said movable frame, said lower corrugated roll having a roll axis parallel to said transverse direction;   an upper corrugated roll rotatably mounted on support means pivotally mounted on said movable frame, said upper corrugated roll having a roll axis parallel to said transverse direction,   means on said main frame for supporting said movable frame in said fixed position on said main frame; and   transfer means for moving said movable frame in said transverse direction between a position vertically above said fixed position at which said movable frame is supported by said main frame and said position off of said main frame at which said movable frame is not supported by said main frame for replacing said movable frame with another movable frame having corrugated rolls with corrugations of a different height and pitch, said transfer means including means on one of said main frame and said movable frame for moving said movable frame vertically between said position vertically above said fixed position and said fixed position on said main frame for making single-faced corrugated sheet.   
     
     
       2. The single facer of claim 1, wherein said main frame has reference surfaces and said movable frame has reference surfaces which correspond to said reference surfaces of said main frame when said movable frame is moved to said fixed position for making single-faced corrugated sheet. 
     
     
       3. The single facer of claim 2, wherein said reference surfaces of said main frame comprise a horizontal reference surface for use in adjusting a vertical position of said movable frame and a vertical reference surface for use in adjusting a horizontal position of said movable frame along said transverse direction. 
     
     
       4. The single facer of claim 1, wherein said transfer means comprises at least one rail extending in said transverse direction and supported on said main frame and at least one wheel rotatably supported on said movable frame for movably supporting said movable frame on said at least one rail of said main frame. 
     
     
       5. The single facer of claim 4, further comprising a truck having means for moving said movable frame onto and off of said at least one rail of said main frame. 
     
     
       6. The single facer of claim 5, wherein said means for moving said movable frame onto and off of said at least one rail of said main frame includes at least one rail movably mounted on said truck and means on said truck for moving said at least one rail of said truck vertically and horizontally to align with said at least one rail of said main frame. 
     
     
       7. The single facer of claim 6, wherein said truck further includes a carrier for moving a movable frame onto said truck and for moving a movable frame from said truck onto said main frame. 
     
     
       8. The single facer of claim 4, wherein said at least one wheel is eccentrically mounted on an axle rotatably supported on said movable frame, said axle having a worm wheel fixedly secured thereto, said movable frame having a worm engaging said worm wheel and a worm shaft extending from said worm wheel for rotating said axle to thereby move said at least one wheel vertically up or down with respect to said movable frame whereby said movable frame is shifted vertically with respect to said main frame. 
     
     
       9. The single facer of claim 1, further comprising means mounted on said main frame for pressing said upper corrugated roll into contact with said lower corrugated roll and means associated with said main frame and said movable frame for fixing said movable frame with respect to said main frame for maintaining said movable frame at said fixed position for making single-faced corrugated sheet. 
     
     
       10. The single facer of claim 1, wherein said main frame includes side portions at either end thereof which are normal to said transverse direction, said side portions having openings therein, said means on said main frame for supporting said movable frame comprises horizontal surfaces defining bottom sides of said openings and said movable frame includes lower horizontal surfaces for contacting said horizontal surfaces of said main frame to thereby position said movable frame in said fixed position for making single-faced corrugated sheet, said means for moving said movable frame in a vertical direction moves said horizontal surfaces of said movable frame into contact with said horizontal surfaces of said main frame. 
     
     
       11. The single facer of claim 10, wherein said transfer means includes at least one rail extending in said transverse direction and supported on said main frame and at least one wheel rotatably supported on said movable frame for movably supporting said movable frame on said at least one rail and said means for raising and lowering said movable frame in a vertical direction includes means for eccentrically mounting said at least one wheel on an axle which is rotatably supported on said movable frame, said axle having a worm wheel fixedly secured thereto, said movable frame having a worm engaging said worm wheel and a worm shaft extending from said worm wheel for rotating said axle to thereby move said at least one wheel vertically up or down with respect to said movable frame whereby said movable frame is shifted vertically with respect to said main frame.